Home / 13,588,785.20-18,751,961.34-7,393,857.41

Finding the Fourth Proportional to 13,588,785.20, 18,751,961.34 and 7,393,857.41

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Solution

The fourth proportional to 13,588,785.20, 18,751,961.34 and 7,393,857.41 is: 10,203,217.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588,785.20 : 18,751,961.34 = 7,393,857.41 : x
  2. Step 2: Convert to fraction form
    13,588,785.20/18,751,961.34 = 7,393,857.41/x
  3. Step 3: Cross multiply
    13,588,785.20x = 18,751,961.34 × 7,393,857.41
  4. Step 4: Simplify right side
    13,588,785.20x = 138,649,328,212,032.72
  5. Step 5: Solve for x
    x = 138,649,328,212,032.72/13,588,785.20
  6. Step 6: Final answer
    x = 10,203,217.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.